diff options
Diffstat (limited to 'sysdeps/generic/tcsetattr.c')
-rw-r--r-- | sysdeps/generic/tcsetattr.c | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/sysdeps/generic/tcsetattr.c b/sysdeps/generic/tcsetattr.c new file mode 100644 index 0000000000..e1b54c5e14 --- /dev/null +++ b/sysdeps/generic/tcsetattr.c @@ -0,0 +1,97 @@ +/* Copyright (C) 1991, 1995, 1996 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <errno.h> +#include <stddef.h> +#include <termios.h> + +static int bad_speed __P ((speed_t speed)); + +/* Set the state of FD to *TERMIOS_P. */ +int +tcsetattr (fd, optional_actions, termios_p) + int fd; + int optional_actions; + const struct termios *termios_p; +{ + if (fd < 0) + { + __set_errno (EBADF); + return -1; + } + if (termios_p == NULL) + { + __set_errno (EINVAL); + return -1; + } + switch (optional_actions) + { + case TCSANOW: + case TCSADRAIN: + case TCSAFLUSH: + break; + default: + __set_errno (EINVAL); + return -1; + } + + if (bad_speed(termios_p->__ospeed) || + bad_speed(termios_p->__ispeed == 0 ? + termios_p->__ospeed : termios_p->__ispeed)) + { + __set_errno (EINVAL); + return -1; + } + + __set_errno (ENOSYS); + return -1; +} + + +/* Strychnine checking. */ +static int +bad_speed (speed) + speed_t speed; +{ + switch (speed) + { + case B0: + case B50: + case B75: + case B110: + case B134: + case B150: + case B200: + case B300: + case B600: + case B1200: + case B1800: + case B2400: + case B4800: + case B9600: + case B19200: + case B38400: + return 0; + default: + return 1; + } +} + + +stub_warning (tcsetattr) +#include <stub-tag.h> |